Sash-lock.



W. J. DIEDRIGH.

SASH LOCK. APPLICATION ,I'ILED JAN. 10, 1912,

Patented Aug. 27, 1912.

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WILLIAM QT. DIEDRICH, OF 'WAUKESHA, WISCONSIN- SASH LOCK.

Specification of Letters Patent.

Patented Aug. 27, 1912.

Application filed January 10, 1912. Serial No. 870,438.-

To all whom it may concern:

Be it known that I, WILLIAM J. DIEDRICH, a citizen of the United States,residing at Waukesha, in the county of Waukesha and State of Wisconsin,have invented certain new and useful Improvements in Sash- Locks, ofwhich the following is a specification, reference being had to theaccompanying drawings.

My invention relates to new and useful improvements in sash locks andfasteners and has for its object to provide a device which will lockboth sashes, in either their open or closed positions, at one and thesame time.

A further object of the invention resides in providing means to retainthe'device in its ineffective position, ma be raised and lowered asordinarily, an a still further object resides in providing such a deviceas may be easily applied and one which maybe quite readily operated.

A further object of the invention resides in providing a device which isadapted for application to the meeting rail of the lower sash and whichis designed to project over the meeting rail of the upper sash and stillanother object of the invention resides in the provision of a doublelocking bolt which is movable laterally of the device so as to enga ethe side molding of the one sash and the side rail of the window casingthereby causing the sashes to bind tightly against the casingandpreventing undue separation of the meetin rails of-the sashes.

Another ob ect of the invention resides in providing a device which isextremely simple and durable in construction, inexpensive tomanufacture,and one which will be very eflicient and useful in operation.

With these and other objects in view, my invention consists inconstruction, combination and arrangement of arts as will be hereinafterreferred to and more particularly pointed out in the specification andclaim.

In the accompanying drawing forming a part of this application, Figure 1is a perspective view showing my device applied to use. Fig. 2 is ahorizontal section through the device and a portion of the window cas-'ng, and, Fig. 3 is a perspective view of the locking bolt removed.

In carrying out my invention, I shall refer to the drawing in whichsimilar reference whereby the sashes the novel features of.

characters designate corresponding parts throughout the several viewsand in which 1 indicates a window casing or frameQwithin which isslidably mounted the upper and lower sashes 2 and 3, respectively, saidsashes being separated from one another in the casing 1 by the usualdividing strip or bead 4. A casing or housing 5 formed preferably ofwood having a removable top 6 thereon, is secured to the u per frame ofthe lower sash 3 by means 0 the screws or the like 7 and the one sideand end of this housing or casing is ofiset to provide square shoulders8 and 9, respectively, the offset portion forming the shoulder 8 beingadapted to receive therein the dividing strip or bead 4, while the otheroffset portion forming the shoulder 9, is adapted to receive the oneside frame of the upper sash 2. A solid portion- 10 formed in the oneend of the housing or casing 5 separates a pair of channel-ways or thelike 11 and 12, respectively, the one channel-way 12 continuing throughthe shoulder 9, while the channel-way 11 continues through the one endof the casing, while both of said channel-ways terminate at theiropposite ends and their hollow portion 13 at the other end of the casingor housing 5.

A locking bolt 14 of substantially Y-shape, is provided and mounted inthe casing 5 so that the two arms thereof are disposed,

respectively, in the channels 11 and 12, while the connection of the twoarms thereof is dlsposed in the hollow portion 13, and the dependentstem 15 of the bolt disposed opening 16 in the one end through a slot orof said casing. The two bifurcated or spaced arms of the bolt 14 aredesigned coincident to the channels 11 and 12 so that one isconsiderably longer than the other, in view of the ofiset portion on theone side of the casing, and in order to dispose the bolt normally insuch position as to permit the ends of the arms to project through theopenings in the end of the casing, a coil spring 17 is provided andencircled about-the stem 15 of the bolt between the one end of thecasing and the junction of the arms of said bolt. The tendenc of thisspring will be to force the free en s of the arms of said bolt throughthe openings formed by the channel-ways 1i. and 12 and the end of thecasing, and in order to withdraw the bolt against the tension of thespring, for a purpose to be to the one side rail of the casing 1' andthe.

adjacent side framev of the upper sash 2,

said strips being provided with a pluralityof openings 21 which alinewith one another and register with sockets or openings 22- in the casingand sash frame, and the casing 5 with its locking bolt carried there'-in, is so designed and applied to the lower sash 3 as to dispose the oneside thereof over the lower frame of the upper sash and permit the twoarms ofthe locking bolt to aline with the line of openings in therespective strips 19 and 20 Thus, it will be seen that the arms of thebolt 14, as they are forced outwardly, by the tendency of the spring 17,are adapted to enter the openings 21 of the strips 19 and 20 and simul-'taneously lock the respective sashes in any adjusted position withrespect to one an-.

other. The normal tendency of the spring 17, as stated above, is toforce the bolt outwardly, and in order to retain the bolt in itsineffective position so that the sashes may be raised orlowered'regardless of the sash look, I provide the longer arm of thebolt 14 with a plurality of n'otches or teeth 23, while pivotallydisposed in a-slot 24 in the one side wall of the casing 5, is a'pawl25. The effective end of this pawl is adaptedfto engage the teeth ornotches 23 in the one arm of the bolt to retain said bolt in itsinefiective position, and the pawl, itself, is manually operable by afinger piece 26 formed on the opposite end thereof and which is designedto project beyond the one side wall of the casing 5.

In operation, it will be seen that after the device has been set up andapplied to the upper frame of the lower sash of the window and thestrips 19 and 20 properly applied to the casing and upper sash,respectively, in alinement with the arms of the locking bolt, saiddevice may be permitted to effectively lock the sashes in their closedpositions, as shown in Fig. l, by merely permitting the lockingbolt'toproject beyond the casing through the tendency of the spring 17 As abovestated, the openings in the strips 19 and 20 are disposed in alinementwith one another and as they are so arrangedas to be received by thearms of the locking bolt at the time the two sashes are in their closedposition, it will be seen that said sashes may be held locked in thisposition. Should it be desired to raise the lower sash, regardless ofthe position of the upper sash, the same may by accomplished by merelydrawing the bolt outwardly by grasping the finger piece 18 and raisingthe sash to the desired height,

whereupon the bolt may be released and'the arms thereof again engagedwith the alining openings in the strips 19 and 20. When it is desired tolower the upper sash, vice versa is true, or both the upper sash andlower sash may be lowered and raised, re-

spectively and then locked-in their adjusted positions in the samemanner as above described. Thus,-it wwill betseen that in no matter whatposition either the upper or lower sash may be, both may be locked andprevented from further movement until the release of the locking bolt14.;Shou1d it be desired 'to eliminate the use of this sash lockentirely so that the sashes may be raised or lowered without noticebeing'given to this device, the same may be inefi'ectively disposed bymerely withdrawing the looking bolt and engaging the effective end, ofthe pawl 25 with the teeth 23 on the one arm of the bolt. Whenever it isagain. desired to place the sash lock in use, it is only necessary torelease the engagement of the pawl 25 with the teeth, 23, whereupon thespring 17 will force the ends of the arms of the locking bolt outwardlytoengage the openings in the strips 19 and 20.

By providing a housing which when secured tothe meeting rail of thelower sash has a portion thereof projecting over the meeting rail of theupper sash, and by providing a locking boltwhich is movable laterally ofthe housing, it will be seen that the rattling of said sashes will beprevented, since the same will be caused to bind against the casing orwindow frame. Furthermore the lateral movement of the locking bolt doesnot force the meeting rails of the sashes apart but simultaneouslycauses the same to bind against the one side of the casing and, in fact,retains said meeting rails together, thereby preventing the wind fromblowing therethrough. It will still further be seen that by permit-tingthe housing to project over the meetin rail of the lower sash, andproviding a doulfle locking bolt, the arms of which are projected overthe meeting rails of the respective sashes, the malicious picking ofsaid lock will be practically impossible.

From the foregoing, it will be seen that I have provided simple,inexpensive and efiicient means for carryin out the objects of theinvention, and while the elements described are most well adapted toperform the functions set forth, it is obvious that various changes inform, proportion and in the minor details of construction may beresorted to without departing from the spirit or sacrificing any of theprinciples of the invention. I

What I claim is In a sash lock of the class described, the;

combination with a'window casing and an upper and lower sash slidablymounted oses said upper sash, a pair of metalllc keeper strips securedrespectively to the one side rail of the upper sash and the wall of saidcasing forward of said lower sash, said strips being provided with aplurality of openings therein, a U-shaped locking bolt lnclosed withinsaid housing and slidable laterally therein, the arms of said bolt beingof unequal lengths and adapted to project through the one side of saidhousing to respectively engage the op strips on the wall of said casingand the side rail of the upper sash,.a stem carried on the enings in thekeeper base of said U-shaped bolt and projected through the oppositeside of said houslng, the projected portionof said stem being disposedover the meeting rail of the lower sash, whereby the same may be readilygrasped to operate said bolt, a coil spring encircling said stem betweenthe base portion of said bolt and the one side wall of saidhousing tonormally dispose said bolt in its effective position, and means toretain said locking bolt in its withdrawn and inefiective positlon.

In testimony whereof I hereunto aflix my signature in the presence oftwo witnesses.

WILLIAM J. DIEDRICH.

Witnesses I L. G. WILLIS, ROBERT L. Hour.

